Why is Rishi Sunak predicted to lose the UK election?

Ever since a rain-soaked UK prime minister Rishi Sunak unexpectedly announced an early general election, the prevailing consensus has been that he will lead the Tories to a loss on 4 July. Jane Lee speaks to Guardian columnist Jonathan Freedland about how 14 years of Conservative rule have shaped the country and what’s at stake for Britons in this campaign